feat: Initialize ESP-IDF project with core build configuration, component dependencies, and web frontend deployment.

Provider/main/CMakeLists.txt

@@ -1,2 +1,11 @@
 idf_component_register(SRCS  "main.cpp"
                     INCLUDE_DIRS ".")
+
+if(CONFIG_CALENDINK_DEPLOY_WEB_PAGES)
+    set(WEB_SRC_DIR "${CMAKE_CURRENT_SOURCE_DIR}/../frontend")
+    if(EXISTS ${WEB_SRC_DIR}/dist)
+        littlefs_create_partition_image(www ${WEB_SRC_DIR}/dist FLASH_IN_PROJECT)
+    else()
+        message(FATAL_ERROR "'${WEB_SRC_DIR}/dist' doesn't exist. Run 'npm run build' in frontend/ first.")
+    endif()
+endif()

Provider/main/Kconfig.projbuild

@@ -25,3 +25,21 @@ menu "CalendarInk Network Configuration"
             Number of times to retry the WiFi connection before failing completely.
 
 endmenu
+
+menu "Calendink Web Server"
+
+    config CALENDINK_DEPLOY_WEB_PAGES
+        bool "Deploy web pages to device's LittleFS"
+        default n
+        help
+            If enabled, the frontend dist/ folder will be flashed
+            to the 'www' LittleFS partition during build.
+            Disable for fast backend-only iteration.
+
+    config CALENDINK_WEB_MOUNT_POINT
+        string "Website mount point in VFS"
+        default "/www"
+        help
+            VFS path where the LittleFS partition is mounted.
+
+endmenu

Provider/main/idf_component.yml

@@ -16,3 +16,4 @@ dependencies:
   #   public: true
   espressif/led_strip: ^3.0.3
   espressif/ethernet_init: ^1.3.0
+  joltwallet/littlefs: "^1.20"  # https://github.com/joltwallet/esp_littlefs